How Clean Is Clear Lake?
Clear Lake has poor water quality, with elevated phosphorus and algae. It received a water quality grade of D (Poor) based on EPA monitoring data. Water clarity (Secchi depth): 1.5 ft. Phosphorus: 76 µg/L. Trophic State Index: 69.
Cleanliness Snapshot
| Metric | Clear Lake | Minnesota avg |
|---|---|---|
| Overall Grade | D | C |
| Water Clarity (Secchi) | 1.5 ft | — |
| Phosphorus | 76 µg/L | <30 = clean |
| Trophic State Index | 69 | <50 = clean |
How does Clear Lake compare?
Clear Lake's grade of D falls below the Minnesota state average of C. It ranks #5 of 7 lakes in Jackson County by water quality score. Multi-year monitoring data shows water quality is improving based on 2 years of records.